public ICondition Or(ICondition conditionExpression)
{
ConditionExpressionCollection cs = new ConditionExpressionCollection();
cs.ConditionRelation = ConditionRelation.Or;
cs.Add(this);
if (conditionExpression is IConditionExpression)
{
cs.Add(conditionExpression);
}
else
{
IConditionExpressionCollection conditionCollection = (IConditionExpressionCollection)conditionExpression;
if (conditionCollection.ConditionRelation == ConditionRelation.Or)
{
foreach (ICondition item in conditionCollection)
{
cs.Add(item);
}
}
else
{
cs.Add(conditionCollection);
}
}
return(cs);
}
public ICondition Or(ICondition conditionExpression)
{
if (ConditionRelation == ConditionRelation.Or)
{
if (conditionExpression is IConditionExpression)
{
Add(conditionExpression);
}
else
{
IConditionExpressionCollection conditionCollection = (IConditionExpressionCollection)conditionExpression;
if (conditionCollection.ConditionRelation == ConditionRelation.Or)
{
foreach (ICondition item in conditionCollection)
{
Add(item);
}
}
else
{
Add(conditionCollection);
}
}
}
else
{
IConditionExpressionCollection cs = Copy();
Items.Clear();
Add(cs);
ConditionRelation = ConditionRelation.Or;
if (conditionExpression is IConditionExpression)
{
Add(conditionExpression);
}
else
{
IConditionExpressionCollection conditionCollection = (IConditionExpressionCollection)conditionExpression;
if (conditionCollection.ConditionRelation == ConditionRelation.Or)
{
foreach (ICondition item in conditionCollection)
{
Add(item);
}
}
else
{
Add(conditionCollection);
}
}
}
return(this);
}
public void Add(ICondition conditionExpression)
{
if (conditionExpression is ConditionExpression)
{
Items.Add(conditionExpression);
}
else
{
IConditionExpressionCollection conditionCollection = (IConditionExpressionCollection)conditionExpression;
if (ConditionRelation == ConditionRelation.And)
{
if (conditionCollection.ConditionRelation == ConditionRelation.And)
{
foreach (ICondition item in conditionCollection)
{
Add(item);
}
}
else
{
Items.Add(conditionCollection);
}
}
else
{
if (conditionCollection.ConditionRelation == ConditionRelation.Or)
{
foreach (ICondition item in conditionCollection)
{
Add(item);
}
}
else
{
Items.Add(conditionCollection);
}
}
}
}
private static void CollectPropertyNames(SortedDictionary <IPropertyExpression, string> taskPropertyNames, ICondition wheres)
{
if (wheres != null)
{
if (wheres is IConditionExpressionCollection)
{
IConditionExpressionCollection conditionCollection = (IConditionExpressionCollection)wheres;
foreach (ICondition obj in conditionCollection)
{
CollectPropertyNames(taskPropertyNames, obj);
}
}
else
{
IConditionExpression conditionItem = (IConditionExpression)wheres;
if (!taskPropertyNames.ContainsKey(conditionItem.Property))
{
taskPropertyNames.Add(conditionItem.Property, null);
}
}
}
}
//生成包含关联表的select语句的 where 部分
protected virtual void GenerateSelectSql_Where(
StringBuilder sb,
IDataParameterCollection parameters, ref int parameterCounter,
ICondition condition, SqlAnalyseResult sqlAnalyseResult, bool includeTableNameAlias, IMappingProvider mappingProvider
)
{
if (condition is IConditionExpressionCollection)
{
IConditionExpressionCollection conditions = (IConditionExpressionCollection)condition;
string andOr = conditions.ConditionRelation == ConditionRelation.And ? " and " : " or ";
if (conditions.Count > 1)
{
sb.Append("(");
}
int index = 0;
foreach (ICondition conditionItem in conditions)
{
if (index > 0)
{
sb.Append(andOr);
}
index++;
GenerateSelectSql_Where(sb, parameters, ref parameterCounter, conditionItem, sqlAnalyseResult, includeTableNameAlias, mappingProvider);
}
if (conditions.Count > 1)
{
sb.Append(") ");
}
}
else
{
IConditionExpression conditionItem = (IConditionExpression)condition;
SqlColumn sqlColumn = sqlAnalyseResult.SqlColumns[conditionItem.Property];
GenerateSelectSql_Where_Item(sb, parameters, ref parameterCounter, conditionItem, sqlColumn, includeTableNameAlias, mappingProvider);
}
}